ruby-on-rails – 如何在Rails中访问JSON？
发布时间：2020-12-17 03:41:41 所属栏目：百科 来源：网络整理
导读：我有以下 JSON参数. Started POST "/tickets/move.json" for ::1 at 2015-01-30 15:30:13 -0600Processing by TicketsController#move as JSON Parameters: {"_json"=[{"id"="1","col"=1,"row"=1},{"id"="2","col"=2,"row"=2},{"id"="3",{"id"="4","col"=4,{
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我有以下
JSON参数.
Started POST "/tickets/move.json" for ::1 at 2015-01-30 15:30:13 -0600
Processing by TicketsController#move as JSON
Parameters: {"_json"=>[{"id"=>"1","col"=>1,"row"=>1},{"id"=>"2","col"=>2,"row"=>2},{"id"=>"3",{"id"=>"4","col"=>4,{"id"=>"5","col"=>5,"row"=>1}],"ticket"=>{}}
我如何访问它们,就像我使用常规的rails params一样？ 解决方法
这是一个常规的params哈希. Rails通常足够智能解码JSON请求并将结果对象放在params中,而hashrockets(=>)是一个死的赠品,它是一个Ruby哈希而不是JSON.格式化得更好看起来像这样：
{ "_json" => [ { "id" => "1","col" => 1,"row" => 1 },{ "id" => "2","col" => 2,"row" => 2 },# ...
],"ticket" => {}
}
您将像任何其他哈希一样访问它： p params["_json"]
# => [ {"id"=>"1",# {"id"=>"2",# ...
# ]
p params["_json"][0]
# => {"id"=>"1","row"=>1}
p params["_json"][0]["id"]
# => "1"
p params["ticket"]
# => {}
实际上它应该是HashWithIndifferentAccess,所以你也应该能够使用符号键： p params[:_json][0][:id] # => "1" （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |